sturges



provision of .resilient clamping Patented Aug. 26, 1924a UNITED STATES PATENT OFFICE.

NORMAN DEXTER STURGES, Uli" BIELLERUESE, NEW' YRK, ASSIGNOR TO MULTIPLE STORAGE Jt. GURLlEi/tlllmhl 0l? NEW YQRK.

BATTERY;

Application filed May 15,

To all whom t may conce/rn:

Be it lrnown that I, NORMAN ,Dineren S'rnnens, citizen ot the United States, residing at liellerose, in the county oft Nassau, State oit ltlew York, have invented certain new` and useful Improvements in l3atteries; and I do hereby declare the 'l'ollowing tobe a full, clear, and enact description ot the invention, such as will enable others skilled in the art to which it appertains to malte and use the same.

This invention relates to electric batteries and particularly to secondary storage batteries.`

It is an* object ot the invention to provide a light, compact and relatively inexpensive battery which may be easily assembled,l the construction beingl such to eiunre agaii'ist leakage ot the electrolyte.

A further object of the invention is the provision ina battery cfunprising metallic dividers and insulating spaters of a fluidtigiit seal between the dividers and sparers.

Another object of the invention the means, whereby the elements of the battery are held in assembled relation.

Another object ot the invention is an arrangement ot V,the dividers and spacers which precludes short-circuiting oit the cells by contact oit the metallic objects with the exposed edges of the dividers.

Further objects and advantages oi the invention will be apparent as it is better understood by reference tothe following Specification and accompanying drawings, in which Fig. 1 is a longitudinal section through a battery embodying the invention;

Fig. 2 is a transverse section through the battery;

Fig. 3 is a section illustrating1 another form of joint between the dividers and spacers; i

Fig. l is a section illustrating a slightly di'erent form of joint;

Fig. 5 is a detail of the resilient clamping means; i

Fig. (i is a detail of another resilient clamping device; and

Fig. 7 is a detail wot a slightly different resilient clamping device.

The type of battery to which the improvements herein described relate comprises a plurality of dividers et rolled sheet lead to `may be of any suitable lorin.

1922. Serial No. 561,065.

the opposite sides of which the active plates are preferably secured in any suitable manner. The dividers are vpreferably circular in form. The active plates consist ci grids with the active material pasted thereon and Annular spacers or suitable insulating material such as hard rubber or Celluloid composition are disposed between the dividers forming therewith the cells or electrolyte containers ot the battery,` it being understood that the active plates on'the opposite dividers are ot opposite type, that is to say, positive and negative.' The dividers form conneo tors or bus-bars between the active plates so that no external connections are required. The dividers and separatorsare held betweenclamps, rods being preferably used to connect the clamps and having nuts thereon whereby the pressure on the assembled elements may be adjusted.

ln constructing` a battery of the type .flescribed, one ditliculty which is experienced is that of securing tluid-tight seals between the dividers and spacers. The elements may be cemented, but to ensure against leakage VI prefer to employ the construction illus trated in the drawing, each spacer beii'ig provided on its opposite faces with a single sharp ridge or with concentric grooves and ridges, the latter being preterably sharp edged. ldfhen the dividers and spacers are clampedV in assembled relation the ridge or ridges en the dividers are torced into the malleable lead, forming a complete seal which will prevent the escape oit iiuids. A suitable 'cement such as rubber, Celluloid or asphaltum composition may be applied to the spacers and when the latter are assembled with the dividers, the cement lille the grooves and with the sharp edges assure a tight joint. The cement is notresscntial when a sharp yridge or ridges are provided.

'Ot course the grooves may be otherwise than angular in section.` Moreover, it ce ment is used the ridOes need not be sharp as rounded edges will also give a good joint contact.' The dividers may be provided with complementary ridges and grooves, forming with the spacers a `tongue andi groove construction, and the ridges and grooves may be formed on the dividers 1n stead of on the spacers. These and other variations are within the purpose of the ind vention.

Lacasse grooves on one of the members, tlie ridges being adapted to engage the adjacent surface of the member.

ll. In a battery cell the combination oit insulating and metallic members forming the body of the cell and a fluid-tight joint between the abutting surfaces of the niembers consisting of a ridge on the insulatiiig member adapted to engage the adjacent surface of the metallic member.

Ll. In a battery cell the combination of. in siilating and metallic members forming the body of the cell and a fluid-tight joint between the abutting surfaces of the members consisting of a plurality of ridges and concentric lgrooves on the insulating member adapted to engage the adjacent surface of the metallic member.

In a battery cell the combination of insulating and metallic members forming the body of the cell and a fluid-tight joint be- `tween the abutting surfaces of the members consisting of a ridge and a connplementary groove in the surfaces of the respective members.

6. In a battery cell the combinationof insulating and metallic members formingr the body of the cell and a fluid-tight joint between the abutting surfaces of the members consisting of a ridge and a concentric groove on one of the members, and a cement filling in the groove.

7. In a battery cell the combination of insulating and metallic members forming the body of the cell and a fluid-tight joint between the abutting surfaces of the mem bers consisting of a plurality of concentric ridges and grooves on one of the members, and a cement filling in the grooves.

8. In a battery cell the combination of insulating and metallic members forming the body of the cell and a fluid-tight joint between the abutting surfaces of the inembers consisting of a ridge and a concentric groove on the insulating member, and a cement filling in the groove.

9. In a battery cell the combination of insulating and metallic members forming the body of the cell and a fluid-tight joint between the abutting surfaces of the members consisting of a plurality of ridges and concentric grooves on the insulatingr member, and a cement filling in the grooves.

10. In a battery cell the combination of insulating and metallic members forming the body of the cell and a fluidtight joint between the abutting surfaces of the mem bers consisting of a ridge and a comple mentary groove in the respective members, and a layer of cement between the surfaces.

11. A battery comprising insulating and metallic members arranged alternately and forming a plurality of cells, and means for resiliently clamping the members in assembled relation.

12. A battery comprising` insulating and. metallic members arranged alternately and forming a plurality of cells, means for resiliently clamping the members in assembled relation, including a frame embracing the members, adjustable mean for applying pressure to the members and resilient means adapted to be placed under tension by the adjustable means.

18. A battery comprising insulating and metallic members arranged alternately and forming a plurality of cells, means for resilieiitly clamping the members in assembled relation, including a frame embracing the members and having a plurality of rods eX tending longitudinally of the battery, nuts on the rods and resilient means adapted to be placed under tension by the nuts.

la. A battery comprising insulating and metallic members arranged alternately and forming a plurality of cells, means for resiliently clamping tlie members in assenr bled relation, including clamps engaging thc end members of the battery, rods connecting the clamps, nuts on the rods and resilient washers between the nuts and clamps.

15. A battery comprising insulating and metallic members arranged alternately and forming a plurality of cells, means for resiliently clamping the members in assembled relation, including clamps of insulating material engaging the end members of the battery and adjustable means for applying pressure to the members, said clamps being reinforced with metal to prevent distortion thereof.

16. In a battery the combination of insulating spacers and metallic dividers arranged side by side alternately to form a plurality of cells, the spacers having a greater diameter at the medial planes of their peripheries than at their edges.

17., In a battery an annular spacer of in sulating material having sharp edged ridges on the opposite sides thereof.

18. In a battery an annular spacer of insulating material having a plurality of ridges and concentric grooves on the sides thereof. i

19. In a battery an annular spacer of insulating material having a greater diameter at the medial plane of its periphery than at the edges.

20. In a battery an annular spacer of insulating material having a greater diameter at the medial plane of its periphery than at the edges, and one or more ridges and concentric grooves in the sides thereof.

In testimony whereof I affix my signature.

NORMAN DEXTER STURGES. 

